Lancefield Serogrouping Alone Is Insufficient for Species Assignment of Streptococci

XV Lancefield Symposium on Streptococci and Streptococcal Diseases.

The Lancefield Groups of Hemolytic Streptococci Found in Children *

In a recent paper Boisvert,' reports that of 509 strains of Streptococcus hemolyticus isolated from 262 cases of streptococcal disease and grouped by means of the precipitin test, all fell into Lancefield's Group A; all of these cases were infants and children. Our own work has been along similar lines and was planned as a further test of the striking relationship between Group A streptococci a...

Evaluation of rapid, commercial latex techniques for serogrouping beta-hemolytic streptococci.

The clinical need to rapidly and correctly differentiate beta-hemolytic streptococci into Lancefield groups has prompted the development of commercially available rapid agglutination techniques. A modified Streptex (Wellcome Diagnostics, Research Triangle Park, N.C.) technique and the PathoDx latex Strep Grouping Kit (Diagnostic Products Corporation, Los Angeles, Calif.) technique were applied ...

Associative learning alone is insufficient for the evolution and maintenance of the human mirror neuron system.

Cook et al. argue that mirror neurons originate from associative learning processes, without evolutionary influence from social-cognitive mechanisms. We disagree with this claim and present arguments based upon cross-species comparisons, EEG findings, and developmental neuroscience that the evolution of mirror neurons is most likely driven simultaneously and interactively by evolutionarily adap...

Experimental verification of microRNA targets is essential, prediction alone is insufficient.

Dear Sir, We refer to recent ‘Letter-to-the-Editor’ from Ma N and Gao X regarding the use of β-actin, a predicted target of hsa-miR-145, as housekeeping control in our earlier published article (1). The authors suggested four target prediction tools, namely TargetScan, miRanda, PicTar and miRGen, could identify β-actin as a potential target of hsa-miR-145 and hence questioned its suitability as...